Dau Tu Phat Trien Thanh Ha LTD Address: No 85, Hang Bac Street, Hang Bac Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101280882 Phone: 0248259419 Hang Bac Ward, Hoan Kiem District, Ha Noi CityFounding date: 16 - 9 - 2002